Generated by XState Viz: https://xstate.js.org/viz

machine.js

const verifyChoice = Machine({
  id: 'vc',
  type: 'parallel',
  states: {
    choiceA: {
      initial: 'empty',
      states: {
        empty: {
          on: {
            CLICK: 'selected',
            VERIFY: 'unselectedAnswer',
          }
        },
        selected: {
          on: {
            CLICK: 'empty',
            VERIFY: 'correctAnswer',
          }
        },
        unselectedAnswer: {},
        correctAnswer: {},
      }
    },
  }
})